Application of Different Spectral Ranges

LANDSAT 7 Bands and Radar Wavelength Range Applications
1 Blue
(0.45 - 0.52 µm)		 Detection of water bodies, coastal waters, distinction between vegetation and soil, deciduous and coniferous forest (different forest types), identification of different vegetation and land use classes, buildings etc., measuring water pollutions and plankton (which permit conclusions about the abundance of fish)
2 Green
(0.52 - 0.6 µm)		 Detection of vegetation and its vitality as well as different land use classes.
3 Red
(0.63 - 0.69 µm)		 Absorption of chlorophyll of plants for detection of different plant species, soil types, mineral contents and use in geological applications.
4 Near IR
(0.76 - 0.9 µm) 		Mapping of biomass and vitality of vegetation, distinction between different vegetation species, detection of soil moisture.
5 Mid IR
(1.55 - 1.75 µm) 		Detection of vegetation and soil moisture, separation of clouds, snow and ice.
6 Thermal IR
(10.4 - 12.5 µm)		 Detection of surface temperatures for city and terrain climatic analysis, registration of vegetation damage and soil moisture, pedological and geological analysis.
7 Mid IR
(2.08 - 2.35 µm)		 Distinction of different minerals for geological applications and registration of moisture patterns like soil and vegetation moisture.
3/1 Red/ Blue Detection of iron oxide in soils and soil and vegetation moisture.
3/4 Red/ Near IR Creation of vegetation indices e.g. NDVI (Normalized Difference Vegetation Index); registration of vegetation vitality and density as well as biomass analysis.
5/4 Mid IR/ Near IR Detection of clay minerals in soils, distinction between fallow land and sealed areas.
5/7 Mid IR/ Mid IR Detection of minerals containing iron in soils, distinction between fallow and sealed areas.
Radar C Band
(5.6 cm)		 Detection of sea surface roughness (find out more in the tutorial about Marine Pollution), can provide information about wind speed and direction, important for monitoring the formation of storms or flood events. Used also in climate modelling and in the planning of flight and shipping companies.